The SHDFRⅠGenerator-Transformer Dynamic Fault Recording Device is a fault recorder for transformers and generators. Developed by Shuanghe on the basis of its original series of fault recording products, this device comes with an imbedded hardware structure and runs a real-time Linux OS. It integrates such functions as transient state fault recording, steady state fault recording, real-time monitoring, and generator test, suitable for fault analysis and recording at fuel-burning power plants, hydropower plants, and nuclear power plants and those at generator test.

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The device allows for free combinations of the transient and steady state recording methods, while steady state data can be saved for more than seven days.

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Two independent hardware systems are adopted for the transient state recording unit and the steady state recording unit so that a recording unit, if damaged, will not affect the normal operation of another.